Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Library Science Research Methodology Research Methods & Design
The three basic principles of design which were developed by Sir Ronald A. Fisher are
(A). Local control
(B). Block designs
(C). Randomization
(D). Replication
1
A, B and C
2
B,C and D
3
A, C and D
4
A, B and D